Morrison, Katelin M; Meyer, Heidi Kristina; Roberts, Emyr Martyn; Rapp, Hans Tore; Colaço, Ana; Pham, Christopher Kim (2021): Occurence of sponges and associated fauna on the Schultz Bank (Flank) during GO Sars cruise GS2018108 in 2018 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.927269
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Abstract:
In 2014, two experimental Agassiz trawls were conducted on the Schulz Bank; one at the summit (568–670 m depth) and one on the southwestern flank (1,464 m depth). The 3-m-wide Agassiz trawl, with a 1 cm mesh size in the cod-end, was towed along the seafloor for 676 m on the summit and 441 m on the flank, resulting in a disturbed area of 2,028 and 1,323 m², for the summit and flank, respectively. Towing speed was maintained at around 2 knots and the initial and final position were recorded. In August 2018, the two trawl marks and four additional control transects (one on either side of the trawl mark) were surveyed while onboard the R/V G.O.Sars. Video recordings were taken along the trawl marks and control transects with the ROV AEGIR6000. Control transects were located 50 m to the east and west of each trawl mark and were performed parallel to the mark.
Supplement to:
Morrison, Katelin M; Meyer, Heidi Kristina; Roberts, Emyr Martyn; Rapp, Hans Tore; Colaço, Ana; Pham, Christopher Kim (2020): The First Cut Is the Deepest: Trawl Effects on a Deep-Sea Sponge Ground Are Pronounced Four Years on. Frontiers in Marine Science, 7, https://doi.org/10.3389/fmars.2020.605281
Related to:
Morrison, Katelin M; Meyer, Heidi Kristina; Roberts, Emyr Martyn; Rapp, Hans Tore; Colaço, Ana; Pham, Christopher Kim (2021): Occurence of sponges and associated fauna on the Schultz Bank (Summit) during GO Sars cruise GS2018108 in 2018. PANGAEA, https://doi.org/10.1594/PANGAEA.927271
Project(s):
Funding:
Horizon 2020 (H2020), grant/award no. 679849: Deep-sea Sponge Grounds Ecosystems of the North Atlantic
Coverage:
Median Latitude: 73.814109 * Median Longitude: 7.438831 * South-bound Latitude: 73.812650 * West-bound Longitude: 7.434680 * North-bound Latitude: 73.815730 * East-bound Longitude: 7.442800
Date/Time Start: 2018-08-04T12:00:00 * Date/Time End: 2018-08-04T18:00:00
Minimum Elevation: -1100.0 m * Maximum Elevation: -1100.0 m
Event(s):
GS2018108-27-ROV-19 * Latitude Start: 73.815900 * Longitude Start: 7.443500 * Latitude End: 73.812600 * Longitude End: 7.434800 * Date/Time Start: 2018-08-04T12:00:00 * Date/Time End: 2018-08-04T18:00:00 * Elevation Start: -1100.0 m * Elevation End: -1100.0 m * Location: Schultz Bank * Campaign: GS2018108 * Basis: G. O. Sars (2003) * Method/Device: Remote operated vehicle (ROV) * Comment: Surveyed deep 2014 trawl mark and adjacent control lines: (1) high altitude Mbeam (2) low altitude for video annotation. In addition 2 boxcores (inside and outside mark)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Identification | ID | Morrison, Katelin M | sampling_unit_transect_area | ||
| 2 | Swept area | Swept area | m2 | Morrison, Katelin M | ||
| 3 | Trawling distance | Trawl dis | m | Morrison, Katelin M | ||
| 4 | LONGITUDE | Longitude | Morrison, Katelin M | Geocode – mean | ||
| 5 | LATITUDE | Latitude | Morrison, Katelin M | Geocode – mean | ||
| 6 | Transect number | Transect no | Morrison, Katelin M | |||
| 7 | Treatment | Treat | Morrison, Katelin M | |||
| 8 | Individuals per area | Ind a | #/m2 | Morrison, Katelin M | all_taxa | |
| 9 | Actiniaria sp. | Actiniaria sp. | #/m2 | Morrison, Katelin M | Anemone1 | |
| 10 | Ascidiacea sp. | Ascidiacea sp. | #/m2 | Morrison, Katelin M | Ascidian | |
| 11 | Lycodes diapterus | L. diapterus | #/m2 | Morrison, Katelin M | black eelpout | |
| 12 | Craniella infrequens | C. infrequens | #/m2 | Morrison, Katelin M | ||
| 13 | Crinoidea | Crinoidea | #/m2 | Morrison, Katelin M | feather star | |
| 14 | Geodia hentscheli | G. hentscheli | #/m2 | Morrison, Katelin M | ||
| 15 | Pedunculata | Pedunculata | #/m2 | Morrison, Katelin M | Gooseneck barnacle | |
| 16 | Haliclona sp. | Haliclona sp. | #/m2 | Morrison, Katelin M | ||
| 17 | Hexactinellida spp. | Hexactinellida spp. | #/m2 | Morrison, Katelin M | ||
| 18 | Ascidiacea sp. | Ascidiacea sp. | #/m2 | Morrison, Katelin M | Jelly ascidian | |
| 19 | Demospongiae indeterminata | Demospongiae indet | #/m2 | Morrison, Katelin M | Large demosponge | |
| 20 | Lycopodina sp. | Lycopodina sp. | #/m2 | Morrison, Katelin M | ||
| 21 | Demospongiae indeterminata | Demospongiae indet | #/m2 | Morrison, Katelin M | Medium demosponge | |
| 22 | Nephrops norvegicus | N. norvegicus | #/m2 | Morrison, Katelin M | Norway lobster | |
| 23 | Demospongiae indeterminata | Demospongiae indet | #/m2 | Morrison, Katelin M | Small demosponge | |
| 24 | Solaster sp. | Solaster sp. | #/m2 | Morrison, Katelin M | ||
| 25 | Ascidiacea sp. | Ascidiacea sp. | #/m2 | Morrison, Katelin M | star1 | |
| 26 | Stylocordyla borealis | S. borealis | #/m2 | Morrison, Katelin M | ||
| 27 | Umbellula sp. | Umbellula sp. | #/m2 | Morrison, Katelin M | ||
| 28 | Indeterminata | Indet | #/m2 | Morrison, Katelin M | white blob |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
728 data points